Some bakery shops provide services for special occasions such as weddings, birthday parties, anniversaries, or even business events. Bakery shops can provide a wide range of cakes designs such as sheet cakes, layer cakes, tiered cakes, and wedding cakes. Other bakeries may specialize in traditional or hand made types of bread made with locally milled flour, without flour bleaching agents or flour treatment agents, baking what is sometimes referred to as artisan bread.